/*******************************************************************************
 * Copyright 2017 Bstek
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License.  You may obtain a copy
 * of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
 * License for the specific language governing permissions and limitations under
 * the License.
 ******************************************************************************/
package com.bstek.urule.model.function.impl;

import com.bstek.urule.RuleException;
import com.bstek.urule.model.function.Argument;
import com.bstek.urule.model.function.FunctionDescriptor;
import com.bstek.urule.runtime.WorkingMemory;

/**
 * @author Jacky.gao
 * @since 2015年7月31日
 */
public class UpdateFactFunctionDescriptor implements FunctionDescriptor {
    private boolean disabled = false;

    @Override
    public Argument getArgument() {
        Argument arg = new Argument();
        arg.setName("要更新的对象");
        return arg;
    }

    @Override
    public Object doFunction(Object object, String property, WorkingMemory workingMemory) {
        if (object instanceof String) {
            String text = (String) object;
            if (text.equals("参数") || text.equals("parameter")) {
                return workingMemory.update(workingMemory.getParameters());
            } else {
                throw new RuleException("Unsupport parameter[" + text + "].");
            }
        } else {
            return workingMemory.update(object);
        }
    }

    @Override
    public String getName() {
        return "UpdateFact";
    }

    @Override
    public String getLabel() {
        return "更新工作区对象";
    }

    @Override
    public boolean isDisabled() {
        return disabled;
    }

    public void setDisabled(boolean disabled) {
        this.disabled = disabled;
    }
}
